thanks very much to john avalon. >>> same sex marriage is dividing america. tomorrow the supreme court will hear the case against proposition eight. that is the california law that banned same sex marriage. and on wednesday the high court takes on the 1996 defense of marriage act. now this is all happening as a new cnn poll shows that a majority of americans, 57%, have a family member or close friend who is gay. and in 2007, only 45% of them said that. obviously, the percentage of people they knew as gay has not changed. it's their awarenessst people in their lives that has risen. this polarizing and personal issue of same-sex marriage is bringing families together and in this story, also tearing them apart. >> reporter: in california's conservative valley, a fight inside the home mirrors the debate in the u.s. supreme court. just far more personal. >> do you regret how you were before? >> yeah. you don't realize, you know, how far you can go in your own son. i didn't know. >> she cheered the passage of california's proposition eight five years ago. the state